<!DOCTYPE HTML>
<html class="minimal">
<title>Canvas test: 2d.imageData.create.large</title>
<!--[if IE]><script src="../excanvas/excanvas.js"></script><![endif]-->
<script src="../tests.js"></script>
<link rel="stylesheet" href="../tests.css">
<link rel="prev" href="minimal.2d.imageData.create.initial.html" title="2d.imageData.create.initial">
<link rel="next" href="minimal.2d.imageData.create.tiny.html" title="2d.imageData.create.tiny">
<body>
<p id="passtext">Pass</p>
<p id="failtext">Fail</p>
<!-- TODO: handle "script did not run" case -->
<p class="output">These images should be identical:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

<ul id="d"></ul>
<script>
_addTest(function(canvas, ctx) {

var imgdata = ctx.createImageData(1000, 2000);
_assertEqual(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
_assert(imgdata.width > 0, "imgdata.width > 0");
var isTransparentBlack = true;
for (var i = 0; i < imgdata.data.length; i += 7813) // check ~1024 points (assuming normal scaling)
    if (imgdata.data[i] !== 0)
        isTransparentBlack = false;
_assert(isTransparentBlack, "isTransparentBlack");


});
</script>

